samba - Jul 2025 - WERR_DNS_ERROR_DS_UNAVAILABLE when asking for local dns server info: WHERE TO LOOK

On Thu, 3 Jul 2025 12:40:56 +0200
"CED Ing. Damiano Bolla via samba" <samba at lists.samba.org>
wrote:
> the FSMO is and was the same machine, no upgrades, with the version I 
> have indicated
> 
> Il 2025-07-03 12:17 PM, Rowland Penny via samba ha scritto:
> > On Thu, 3 Jul 2025 12:12:27 +0200
> > "CED Ing. Damiano Bolla via samba" <samba at
lists.samba.org> wrote:
> >
> >> PS C:\Windows\system32> cmd /c ver
> >> Microsoft Windows [Versione 6.0.6003]
> >>
> >>
> > NO, not what it is now, what was it originally.
> >
> > It could make a very big difference to your dns.
> >
> > Rowland
> >
> 
Okay, what you posted would probably make it a 2008 DC, so I will ask
in a different way, if you run this command on the Samba DC:

samba-tool dns zonelist 127.0.0.1 --forward

What is the output ?

Rowland

now, the answer I was looking for is:

to know what service are started: set the debug level to 5 in smb.conf 
and have a look at startup messages in log.samba

to know why the service is not working: look at error messages in 
log.samba when running the
#? samba-tool dns serverinfo vdce

-------------------------------------
> Okay, what you posted would probably make it a 2008 DC, so I will ask
> in a different way, if you run this command on the Samba DC:
>
> samba-tool dns zonelist 127.0.0.1 --forward
>
> What is the output ?
There is no output, since the DCE crashes

BUT nslookup works and has result for a direct and reverse zone

however, I am digging up the logs to try to guess what is happening when 
using nslookup

looking into it

I can confirm that nslookup can find the main zone and the reverse zones

however, samba-tool dns zonelist fails with the following on log

[2025/07/03 13:46:09.176503,? 2] 
source4/rpc_server/dnsserver/dnsdb.c:146(dnsserver_db_enumerate_zones)
 ? dnsserver: Found DNS zone 102.168.192.in-addr.arpa
[2025/07/03 13:46:09.176539,? 1] librpc/ndr/ndr.c:733(_ndr_pull_error)
 ? ndr_pull_uint32: ndr_pull_error(Buffer Size Error): Pull bytes 4 
(librpc/ndr/ndr_basic.c:193) at librpc/ndr/ndr_basic.c:193

yes, 102 is valid 192.168.102.0/24 is a test network I am using

Il 2025-07-03 12:59 PM, Rowland Penny via samba ha
scritto:
> On Thu, 3 Jul 2025 12:40:56 +0200
> "CED Ing. Damiano Bolla via samba" <samba at
lists.samba.org> wrote:
>
>> the FSMO is and was the same machine, no upgrades, with the version I
>> have indicated
>>
>> Il 2025-07-03 12:17 PM, Rowland Penny via samba ha scritto:
>>> On Thu, 3 Jul 2025 12:12:27 +0200
>>> "CED Ing. Damiano Bolla via samba" <samba at
lists.samba.org> wrote:
>>>
>>>> PS C:\Windows\system32> cmd /c ver
>>>> Microsoft Windows [Versione 6.0.6003]
>>>>
>>>>
>>> NO, not what it is now, what was it originally.
>>>
>>> It could make a very big difference to your dns.
>>>
>>> Rowland
>>>
> Okay, what you posted would probably make it a 2008 DC, so I will ask
> in a different way, if you run this command on the Samba DC:
>
> samba-tool dns zonelist 127.0.0.1 --forward
>
> What is the output ?
>
> Rowland
>
>